Attachment for silk doubling and twisting machines



A ril 5 1927.

p I M. KIEFFER ATTACHMENT FOR SILK DOUBLING AND TWISTING MACHINES iled June 16, 1926 r [nientor Harm/'7; ffz'affer;

Patented Apr. 1927.

wuNiTEo STATES.

,m 'm xmrrnn, or 0 m, NEW YO K.

.ATTACHMENT. ron SILK nounmive AND TWISTING Machines.

. p Application filed .Tune16,

The present invention relates to an attach- 'ment for a silk doubling and twisting machine and aims to provide a device for engagement withthe gear case and roller holder, havinga structure so that when the machine is stopped, the silk which hangs loose around'the rolls will not get into the gears until the machine is started up again,

' signed.

as frequently happens.

Another very important object of the invention' lies in the provision of a device of this nature formed from a single strand of wire to provide hooked ends which engage the upper and lower edge of the gear casing and intermediate portions which function as guides or stops for they silk.

A still further very important object of theinvention lies in the provision of a device ofthis naturewhich is simple in its construction, inexpensive to manufacture, easy to put inplace on the gear casing," efiicient and reliable in use, and otherwise well adapted to'the purpose 'for which it'is de- Vith the above and-numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

. In the drawing r V Figure 1 is a front'elevation of a gear casing and roller holder showing my attachment associated therewith,

Fig. 2 is a vertical section therethrough, and r Fig. 3 isa top plan view of the at tachment.

Referring to the drawing in detail, it will be seen that the letter C represents the gear casing of a well known type of silk doubling and twisting machine in which is supported'the roller holder H. The usual rolls .R are journaled in the holder H. The parts thus far described are all of conventional and well known construction, in a machine. 'ofthis type when the same 1s stopped, the

silk hangs loose around the rolls R and when the machine is started up the silk draws over to the side where the gears are provided on the roll, and in this way the silk I gets caught and is drawn around the shaft S of the gear G andmeshes with the gear elements on the ends of the rolls R. This does not happen always, but happens fre- 1926. Serial No. 116,429[

quently enough to be a nuisance and "to waste considerable silk and also causes an unnecessary and very expensive wear on the gear.

My attachment isformed from a single strand of wire having its ends bent to provide hooks 5 and 6. An intermediate portion of the wire is bent laterally to be substantially U-shaped as is indicated at 7 for hearing against the exterior surface of the casing C, it being noted that the plane of this, portion 7, see Fig. 3, is normally at an oblique angle to the general plane of the attachment, but is forced to a right angular position as is indicated in dotted lines in Fig. 3 when actually attached to the casing C.

Immediately above the portion 7, a V- shaped bend 8 is formed to project outwardly from the casing G, and this portion 8 prevents the thread from moving over toward the gears. Immediately above the portion 8, the wire is bent to conform to the upper curve of the casing C and is then bent straight upwardly and then downwardly to form the portion 9 which terminates between the rolls R. The end of the portion 9 merges into a downwardly curved 7 portion which in turn merges in an upwardly curved portion that merges into the hook 6. I 7 It is thought that the construction, utility, and advantages of this attachment will be clearly understood by those skilled in this art ,without a more detailed description thereof. The present embodiment of the invention has been disclosed in detail, merely by way of example since in actual practice it attains the features of advantages enumerated as desirable in the statement of the invention and the above description. It will be apparent that changes in the details of construction may be resortedto without de- .parting from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages. 7

Having thus described my invention, what I claim as new is 1. An attachment of the class described formed from a single strand of wire bent at its ends to provide hooks for engaging over the upper and lower edges of the gear casing V of a silk doubling and twisting machine, and the intermedlate portion thereof being bent outwardly to form a stop. 10

V 1 2. An attachment for silk doubling and twisting machines comprising a strandof Wire bent at its ends to form hooks for engaging over the upper and lower edges of the gear casing of the machine and bent intermediate its laterally and again intermediate its ends outwardly.

3. An attachment of the class described formed from a single strand of wire bent at its lower end to provide a hook and iiiterlnediate its ends above said hook to provide a lateral U-shaped portion extending normally obliquely to the general plane of the attaehnient, then bent outwardly in a substantially V-shaped formation, then curved inwardly and upwardly then downward. then concentric with the curved por i5 tion, then upwardly and concentrically with said curved port-ion. and terminating in a hook.

In testimony whereof I afiix my signature.

MARTIN KIEFFER. 

